Improvement in band sawing-niachines



1 H'. D BLISS.

Improvement in' Band-Sawing Machines.

No.v 130,618.` e Patented Aug 2o, 172.f

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HosEA D. BLI'ss, 0E HAMBURG, IowA.

IMPROVEMENT IN BAND SAWlNG-MACHINES.

Specification forming part of Letters Patent No. 130,615, dated August20, 1572.

Specification describing an Improvement in Band Sawing-Machine, inventedby HOSEA D. BLIss, of Hamburg, in the count-y of Fremont and vState ofIowa.

In the accompanying drawing, Figure l is atopviewofmyimprovedsawingmachine. Fig. 2 is a back view of lthe same..

Similar letters of reference indicate corresponding parts.

This invention relates to improvementin the class of bandsawing-machines wherein the saw is so hung as to be inclined from avertical plane when desired; and it consists, chieiiy, in theconstruction and arrangement of parts whereby the standard carrying thepulleys upon which the saw is mounted may be ad- Y justed at variousangles to the reciprocating table with ease,

dispatch, and certainty.

A in the drawing represents the sawing-machine table or frame, otsuitable size, form, and material. and C the Aupper B is the lower drumholding the band-saw D. The shaft c of the lower drum has its bearingsin the frame.

A, and serves also as a pivot for the lower end of the post E, in whoseupper part the shaft b of the upper drum has its bearings. The bandsawis laid around the two drums and is operated by means of a crank-handle,F, which is applied to the shaft a. On the latter the post E can beinclined at will to bring the cutting portion of the saw in a similarinclined position. A slotted segment, d, on the post, receiving aset-screw, e, serves as a means of fastening the post in any desiredposition. The crank Fis slotted where it connects with the shaft c, andcan be lengthened or short-` ened in consequence, in order to give therequt site amount of power. For giving theright tension to the saw theshaft b is hung in a block,

,which can be set up or down in the slotted upper part of the post E. gis a slide in that part of the table through which the saw passes, andis moved in or out, as may be required, whenever the saw is changed froma vertical to an inclined position, or vice versa. Gris the slidingcarriage on which the wood is fed to the saw, and H is a ledge or restarranged on top of this carriage. The rest H is pivoted bya pin, It, andcan thereon be turned to hold the wood obliquely or at right angles tothe saw, as may be desired. lBy a screw, ,-passing through a slottedsegment, j, the rest H can be secured in suitable position.

`I propose to use a band-saw with teeth of such form that it can bereversed by being turned inside out whenever the teeth are blunt on oneside. Regular V-shaped teeth, properlyupset, will best answer thispurpose.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent- The improved sawing-machine, formed of.

the table A, slide g, carriage G, pivoted guide l-Ij, pivoted post E,slotted adjusting-plate d, pulleys B (l, band-saw D, and crank-shaft,all constructed, arranged, and operating as specitied.

HOSEA D. BLISS.

Witnesses:

R. N. BUCKHAM, J. M. WATERMAN.

